UFH has its own pump that keeps running round the clock!

[k.udhay]

Here is the translation, not much use.

So do you just turn up the roomstat to start the CH and does this then start the circ pump in the photo.
and ditto for the HW, how do you get it, do you just open a hot tap (does it also start that circ pump) and when both are off is this circ pump off as well?.

View attachment 66369

 

[k.udhay]

The pump turns on only when radiator valve is actuated via temperature controller.

When I open sink or shower the marked valve is actuated (may be by pressure difference?)

 

[John.g]

If you want the UFH to actuate this valve (and pump) independently of the radiators then you need another zone valve teed in before the radiator one and actuated by a UFH timer and roomstat like a S plan so will probably need professional help to achieve this, a cruder/simpler system would be to supply the UFH manifold pump from the radiators zone valve but you then don't have independent control of the UFH system.

 

[k.udhay]

If you want the UFH to actuate this valve (and pump) independently of the radiators then you need another zone valve teed in before the radiator one and actuated by a UFH timer and roomstat like a S plan so will probably need professional help to achieve this, a cruder/simpler system would be to supply the UFH manifold pump from the radiators zone valve but you then don't have independent control of the UFH system.

Hi John,

Thanks a ton for providing so much help. The main two reasons I wrote this post here were to know:
1. Can the UFH pump run through out the winter?
2. If not, is it practical for me to make it automatically controlled by the central heating unit.

You already answered (1) and now also (2). I believe I have understood what I wanted to.